EP1049603A1 - Fahrzeugsitz, insbesondere kraftfahrzeugsitz - Google Patents
Fahrzeugsitz, insbesondere kraftfahrzeugsitzInfo
- Publication number
- EP1049603A1 EP1049603A1 EP99907287A EP99907287A EP1049603A1 EP 1049603 A1 EP1049603 A1 EP 1049603A1 EP 99907287 A EP99907287 A EP 99907287A EP 99907287 A EP99907287 A EP 99907287A EP 1049603 A1 EP1049603 A1 EP 1049603A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- support
- vehicle
- pelvis
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
- B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
- B60N2/4221—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the front
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
- B60N2/42718—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure with anti-submarining systems
Definitions
- Vehicle seat in particular motor vehicle seat
- the invention relates to a vehicle seat, in particular a motor vehicle seat, according to the preamble of claim 1.
- a seat for a motorcycle is known from EP 0 718 144 AI, in which additional energy absorption elements are arranged in the seat cushion, i.e. in the comfort area, of motorcycle seats.
- additional energy absorption elements are arranged in the seat cushion, i.e. in the comfort area, of motorcycle seats.
- These preferably consist of soft polyurethane foam, are arranged in different shapes in the seat cushion and extend in the direction of the longitudinal axis of the vehicle over a certain length in the seat. In one embodiment, they have a greater thickness at their front edge than at the rear edge, the thickness decreases continuously and its top slopes downwards at an angle. This is to prevent the driver's pelvis from moving forward due to vibrations and vehicle decelerations.
- the invention has for its object to reduce the occupant loads in the event of a large deceleration of the vehicle, in particular as a result of a crash, by an early increase in the restraining forces and an increase in the energy absorption capacity of the seating system.
- an energy absorption element is arranged in the front part of the seat under the comfort area, in the horizontal direction through the pelvis of the occupant when it is advanced as a result of the vehicle decelerating strongly, in particular as a result of a crash , deformable support arranged, and the seat structure is in the rear area of the seat, in particular near the support at least partially through the pelvis of the occupant its forward displacement can be deformed downwards as a result of the vehicle decelerating strongly, the height of the support remaining at least almost unchanged.
- the advantage of this arrangement is that, in the event of a crash, a positive connection between the pelvic ischial bumps of the occupant on the one hand and the seat structure and support on the other hand is generated, so that the restraining forces acting on the occupant are increasingly used up by the seat. If the vehicle decelerates significantly, the pelvis also makes a vertical penetration movement into the deformable seat structure arranged in front of the support in the direction of travel, as a result of the pelvic belt. Since the support is provided with a high degree of rigidity vertically, and the flow of force between the support and the deformable seat structure is completely or partially decoupled in a suitable manner, deformation of the support in this direction is almost prevented. A shoulder is formed which prevents the occupant from sliding off.
- the pelvis If the pelvis is advanced further, the support is deformed in the horizontal direction and the pelvis is subjected to appropriate restraining forces. To a certain extent, the pelvis is braked horizontally in the direction of acceleration of the occupant, as in a safety catch. This targeted application of restraint forces to the pelvis reduces occupant loads.
- the seating system components are designed in such a way that the positive connection is only generated in the event of a crash, so that it cannot be felt in normal driving for comfort reasons. - 4 -
- the support extends over the entire seat width and is connected at the ends to the seat structure, while in the remaining area there is no connection to the seat structure. This ensures the deformation of the area of the seat structure lying in front of the support in the direction of travel necessary for the formation of the heel.
- the shell has a slot which runs transversely to the longitudinal axis of the vehicle and in which the support is arranged.
- the width of the slot is dimensioned such that the deformability of the support in the horizontal direction is ensured even with a shell-shaped seat structure.
- Another embodiment also has a shell-shaped seat structure, in which case there is a connection between the support and the area of the seat structure in front of it over the entire seat width.
- the desired deformation of the seat structure in the event of a crash is ensured here by a sheet metal fold, which is provided in front of the support in the direction of travel.
- the deformability of the seat structure is ensured by the formation of the area lying in front of the support in the direction of travel as a braid.
- the connection between the support and the seat structure is expediently interrupted in the central area.
- the pelvis Due to the belt geometry, the pelvis performs a vertical penetration movement into the seat during forward movement, whereby the rear area of the seat is deformed vertically. To maintain the heel generated in front of the prop in the direction of travel, it is It is advisable that the support has great rigidity in the vertical direction in order to prevent the occupant from sliding over the heel.
- the support consists of a tube with a web attached to increase the rigidity in the vertical direction.
- any profile shape is conceivable which opposes a sufficiently large resistance to deformation in the vertical direction and, by the possibility of horizontal deformation, applies acceptable restraining forces to the occupant.
- FIG. 1 is a schematic representation of an embodiment of a vehicle seat with a transverse slot in front of a support
- FIG. 2 shows the vehicle seat according to FIG. 1 during the deceleration phase of the vehicle
- FIG. 3 shows the vehicle seat according to FIG. 1 in an advanced deceleration phase of the vehicle
- FIG. 4 shows a schematic illustration of a second embodiment of a vehicle seat with a transverse fold in front of the support in a seat shell
- FIG. 5 shows a schematic illustration of a third embodiment of a vehicle seat with a braid in front of the support, - 6 -
- FIG. 6 shows the front view of a support designed as an energy absorption element
- FIG. 7 shows the side view of the support according to FIG. 6.
- the vehicle seat 1 shown schematically in FIG. 1 has a seat shell 2 and a backrest 3.
- the seat shell 2 has a slot 4 in the front area, which extends at least almost over the entire width of the seat shell.
- the seat shell 2 is divided by the slot 4 into a front area 2a and a rear area 2b.
- a support 5 is arranged as an energy absorption element, which consists of a tube 6 and a web 7, which extends over the central region of the tube and in the vertical direction (FIGS. 6 and 7).
- the support is connected to the seat structure only at its ends.
- the support In the horizontal direction, the support is provided with a stiffness that allows deformation by the occupant after the positive connection has been generated.
- the vertical direction In the vertical direction, on the other hand, it has high rigidity, so that deformation in this direction is practically impossible or suppressed.
- the tube 6 is arranged in the slot so that it ends at the top of the seat shell, i.e. does not protrude from it. The support does not penetrate the upholstery during normal driving and is therefore not noticeable to the occupant.
- the pelvis In the event of a major deceleration of the vehicle, for example as a result of a crash, the pelvis tends to move forward. Due to the lap belt 10, the pelvis also performs a vertical penetration movement into the seat during the horizontal advancement.
- the pelvis deforms the rear region 2b of the seat shell 2, that is to say the region lying in front of the support 5 in the direction of travel, downwards, as is shown in FIG. 2.
- the seat shell can be deformed particularly easily at the slot 4, so that the support 5, the height of which does not change, projects beyond the seat shell.
- the seat shell 2 has a fold 11 in front of the support 5, as seen in the direction of travel.
- the seat shell is connected to the support 5.
- the area 2b is pressed down by the occupant, so that the seat shell then has the course shown in dashed lines.
- the area 2b of the seat lying in front of the support 5 is made of braid 12. This is not connected to the support 5 in the central region, as seen transversely to the direction of travel.
- the braid deforms downward and assumes the position shown in dashed lines in FIG. 5. The support thus becomes effective in the same way as in the previous exemplary embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803784A DE19803784A1 (de) | 1998-01-22 | 1998-01-22 | Fahrzeugsitz, insbesondere Kraftfahrzeugsitz |
DE19803784 | 1998-01-22 | ||
PCT/DE1999/000202 WO1999037500A1 (de) | 1998-01-22 | 1999-01-21 | Fahrzeugsitz, insbesondere kraftfahrzeugsitz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1049603A1 true EP1049603A1 (de) | 2000-11-08 |
EP1049603B1 EP1049603B1 (de) | 2002-01-16 |
Family
ID=7856253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99907287A Expired - Lifetime EP1049603B1 (de) | 1998-01-22 | 1999-01-21 | Fahrzeugsitz, insbesondere kraftfahrzeugsitz |
Country Status (6)
Country | Link |
---|---|
US (1) | US6402237B1 (de) |
EP (1) | EP1049603B1 (de) |
JP (1) | JP3636659B2 (de) |
BR (1) | BR9907186A (de) |
DE (2) | DE19803784A1 (de) |
WO (1) | WO1999037500A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8251444B2 (en) * | 2005-04-25 | 2012-08-28 | Arjuna Indraeswaran Rajasingham | Vehicle occupant support |
GB2357466B (en) * | 1999-12-21 | 2003-04-02 | Autoliv Dev | Improvements in or relating to a vehicle seat |
DE20105439U1 (de) | 2001-03-28 | 2002-08-08 | Johnson Controls GmbH, 51399 Burscheid | Sitzteil für einen Fahrzeugsitz mit Antisubmarining-Einrichtung |
DE10231794A1 (de) * | 2002-07-10 | 2004-02-12 | Takata-Petri Ag | Kraftfahrzeugsitz |
US8240758B2 (en) * | 2006-03-27 | 2012-08-14 | Nissan North America, Inc. | Deformable seat pan for a tiltable vehicle seat |
GB201019468D0 (en) * | 2010-11-17 | 2010-12-29 | Vital Seating & Systems Ltd | A seat for absorbing a force |
DE102019111919A1 (de) * | 2019-05-08 | 2020-11-12 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeugsitzanordnung und Fahrzeug |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1322280A (en) * | 1971-07-13 | 1973-07-04 | Chapple J E | Motor vehicle automatic safety seat |
GB1348873A (en) * | 1972-02-11 | 1974-03-27 | Ford Motor Co | Motor vehicle seat |
US4154472A (en) | 1977-09-09 | 1979-05-15 | Gateway Industries, Inc. | Method and apparatus for protecting a vehicle occupant |
GB2087226B (en) * | 1980-09-04 | 1984-12-05 | Transport The Minister Of | Shock absorbing seat |
US4711497A (en) | 1984-06-18 | 1987-12-08 | Aisin Seiki Kabushika Kaisha | Seat for vehicles |
DE3521067C2 (de) * | 1984-06-18 | 1995-04-20 | Aisin Seiki | Gestell für Fahrzeugsitze |
DE4128954A1 (de) | 1991-08-30 | 1993-06-09 | Eca Gmbh & Co. Kg, 5632 Wermelskirchen, De | Sitzteil eines fahrzeugsitzes |
DE4211964C2 (de) * | 1992-04-09 | 1995-11-09 | Daimler Benz Ag | Als Wellrohr ausgebildeter Deformationskörper |
US5567006A (en) * | 1993-10-01 | 1996-10-22 | Mccarthy; Joseph | Vehicle seat with articulated sections |
US5558399A (en) * | 1994-09-13 | 1996-09-24 | Serber; Hector | Seat and lumbar motion chair, assembly and method |
EP0718144B1 (de) * | 1994-11-25 | 2000-07-12 | Yamaha Hatsudoki Kabushiki Kaisha | Fahrzeugsitz |
AT888U1 (de) * | 1995-02-02 | 1996-07-25 | Euromotive Gmbh | Sitzflächenrahmen für einen kraftfahrzeugsitz |
FR2754498B1 (fr) * | 1996-10-11 | 1998-11-27 | Renault | Siege automobile avec dispositif d'anti-soumarinage a absorption d'energie |
-
1998
- 1998-01-22 DE DE19803784A patent/DE19803784A1/de not_active Withdrawn
-
1999
- 1999-01-21 DE DE59900625T patent/DE59900625D1/de not_active Expired - Lifetime
- 1999-01-21 JP JP2000528445A patent/JP3636659B2/ja not_active Expired - Fee Related
- 1999-01-21 WO PCT/DE1999/000202 patent/WO1999037500A1/de active IP Right Grant
- 1999-01-21 EP EP99907287A patent/EP1049603B1/de not_active Expired - Lifetime
- 1999-01-21 US US09/600,539 patent/US6402237B1/en not_active Expired - Fee Related
- 1999-01-21 BR BR9907186-0A patent/BR9907186A/pt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9937500A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999037500A1 (de) | 1999-07-29 |
JP2002500981A (ja) | 2002-01-15 |
DE59900625D1 (de) | 2002-02-21 |
US6402237B1 (en) | 2002-06-11 |
BR9907186A (pt) | 2000-10-17 |
JP3636659B2 (ja) | 2005-04-06 |
DE19803784A1 (de) | 1999-07-29 |
EP1049603B1 (de) | 2002-01-16 |
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